Self-iregulatim-g and sele-oiling mill-bush



s. MOORE.

Mill Bush.

Patented April 8, 1840.

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STATES OFFICE.

SAMUEL MOORE, OF GHAMBERSBURG BO ROTL TGH, PENNSYLVANIA.

SELF-REGULATING AND SELF-OILING MILL-BUSH.

Specification of Letters Patent No. 1,541, dated April 8, 1840.

To all whom it may concern Be it known that I, SAMUEL MOORE, of theborough of Ghambersburg, in the county of Franklin and State ofPennsylvania, have invented an improvement in the manner of constructingbushes for sustaining the spindles of millstones, which improvedapparatus I denominate the Self-Regulating and SelfOiling Mill-Bush, andI do hereby declare that the following is a full and exact descriptionthereof.

In the accompanying drawing I have given a representation of my millbush, showing a horizontal section thereof through the center of thebox, and its appurtenances, and a vertical section.

A, A, A, is an exterior case, or box, which I, in preference, make ofcast-iron, in the form of a cross, its extreme length being usuallyabout ten or eleven inches, according to the size of the eye of thestone within which it is to be received. The depth of this box should beabout three inches and a half. Each of its ends is to be let into thestone, say to the distance of one fourth of an inch, and the spaces B,B, B, between it and the stone, may be filled in with wood, which willaid in keeping the box firm.

C, is the center within which the collar of the spindle revolves; D, D,D, are brass boxes, and oil cups, each of which will contain agill ofoil, for lubricating the spindle; these brass boxes are made concave ateach end, their concavity being such as to adapt them to the collar ofthe spindle which they are to embrace and sustain; and from the formgiven to them, when one end becomes worn, the other may be turnedinward, and the bearing is thus renewed. From these brass boxes, or oilcups, I carry the oil to the spindle by capillary attraction, and forthis purpose I drill a small hole through the upper edge of the curvedend of each box, into which hole I insert a piece of cotton wick, orother fibrous material, one end of which touches the spindle, while theother descends into the oil, as shown in section, Fig. 2, H, being thewick. These brass boxes are borne up against the spindle, in thefollowing manner. E, E, are studs, or bolts, firmly attached to the boxA, A, at their outer ends, and tapped so as to form a screw along-them,upon which screws work the nuts F, F; these nuts are made to bearagainst springs G, G, the ends of which act against the boxes D, D; thepressure of which against the spindle may be consequently regulated withprecision.

To prevent dust from falling into the oil boxes, and other parts of thebush, I form a close cover consisting of a metallic plate, or othersuitable material, through an opening in which the spindle may pass, andwithin it may revolve.

Having thus, fully described the mode in which I construct my improvedmill bush, what I claim therein as constituting my invention, and whichI desire to secure by Let ters Patent, is r The manner in which I havearranged and combined the doublefaced brass boxes, or oil cups, with thenuts, studs and springs, so as to operate upon the spindle, in themanner, and for the purpose, herein set forth.

In testimony whereof I have hereto set my hand this 27th day of Februaryonethousand eight hundred and forty.

SAMUEL MOORE.

WVitnesses:

JOHN F. DENNY, RoBT. CRIswELL.

